NANO

ELECTRICAL 37 Sr No DTC Code DTC Descriptio n Minimum Time for Fault Setting / Tester Visibility, Assuming Fault was created while Ignition was OFF Impact on customer Probable cause Investigation/Rectificati on/Repair action 7 U0131 08 Lost Communic ation with EPAS - Bus Signal / Message Failures 1 to 1.25s Hard steering, EPAS lamp ON. Default steering assistance 1. EPAS ECU is connected properly in the vehicle. 2. EPAS ECU battery/Ignition fuse is not connected properly in Fuse Relay Box. 3. Improper/ No Grounding. 4. Permanent open circuit failure in CAN High line of EPAS stub (or connector) in wiring harness. 5. Permanent open circuit failure in CAN Low line of EPAS stub (or connector) in wiring harness. 6. EPAS ECU CAN High or Low line terminal back out at EPAS wiring harness connector. 1. Check if EPAS ECU is connected properly in the vehicle. 2. Check if EPAS ECU Ignition/Battery fuse is connected properly in Fuse Relay Box (EFRB), if fuse not present or blown connect/replace the fuse. 3. Check for ground line connected properly. 4. Check if EPAS ECU CAN lines are connected properly in vehicle. 5. Repair the wiring harness. 8 B1912 15 Park Brake Warning Indicator Input - circuit short to battery or open Post execution of Service Self-Test Routine (or) EOL Self-Test Routine <= 20sec delay time. Park brake TT will always be turned OFF till this DTC is active. Park brake input short or open Park Brake input shorted to battery positive or Park brake input not connected to IC or Park brake input wire cut. 9 B1912 11 Park Brake Warning Indicator Input - circuit short to ground Post execution of Service Self-Test Routine (or) EOL Self-Test Routine <= 20sec dealy time. Park brake TT will always be turned ON till this DTC is active. Park brake input short Park Brake input shorted to battery negative or Ground.